Rollins enters his second season with the Mystics. He has been an assistant coach in the NBA with the Washington Wizards, Indiana Pacers and the Orlando Magic. He was the head coach with the Greenville Groove of the National Basketball Developmental League.
He spent 18 seasons in the NBA and was considered a defensive force, accumulating 2,542 blocks, 6,249 points and 6,750 rebounds. Fifteen of his 18 seasons, his teams advanced to the playoffs. "We look forward to turning the season around with Tree's guidance," said Team President and Managing Partner, Sheila Johnson.
Mystics GM Hargrove said she promoted Rollins because “he’s really tall, and he knows Larry Bird.” Rollins only comment was, “Man, there’s a lot of chicks here – on the court, in the locker room, the front office, the stands…They’re EVERYWHERE!”